no
no
Inventions under the via Paris Convention : 12 months from the earliest priority date.
It is protected for 5 years from the date of application, renewed every 5 years, and can be renewed twice, up to a maximum of 15 years.
no
Bangladesh Patent and Trademark Office
English: Department of Patents, Designs and Trademarks Ministry of Industries, abbreviation: DPDT
Website: Department of Patents, Designs and Trademarks (DPDT)
no
2 years
6 months before the filing date/priority date.
DPDT only conducts formality examination of design patent applications, not substantive examination.
20 years (Bangladesh Patents Act 2022)